Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
T-line Impedance 1
- Thread starter james001
- Start date
You will need to compute this using standard reference text such as Westinghouse (ABB) Transmission & Distribution, "Elements of Power Systems Analysis" by Stevenson, or "Analysis of Faulted Power Systems" by Anderson. Any basic text on power systems should have the information you need.
The calculation has to take into account the self-inductance of each conductor as well as the mutual inductance between phases. This depends on conductor geometry as well as spacing and configuration. Zero-sequence calculations require information (or assumptions) on earth resitivity and height above ground.
It's a little involved, but not really that difficult if you have a good reference.
The calculation has to take into account the self-inductance of each conductor as well as the mutual inductance between phases. This depends on conductor geometry as well as spacing and configuration. Zero-sequence calculations require information (or assumptions) on earth resitivity and height above ground.
It's a little involved, but not really that difficult if you have a good reference.
SidiropoulosM
Electrical
The calculation of transmission line impedance is straightforward once you have a good understanding of all the necessary parameters on conductor geometry. I agree with dpc's suggestions. Here are some more:
1. EPRI's "Transmission Line Reference Book". It has extensive tables and you may be able to find your line without doing the calculations yourself.
2. B.M.Weedy, "Electric Power Systems". This book has the necessary formulas (pages 71-75) and some tables. The explanation of the formulas is given in an easily understandable way.
I don't want to give you the formulas here, because you need to understand how they are affected by the conductor geometry, which you can only get by reading the textbook. Michael Sidiropoulos
1. EPRI's "Transmission Line Reference Book". It has extensive tables and you may be able to find your line without doing the calculations yourself.
2. B.M.Weedy, "Electric Power Systems". This book has the necessary formulas (pages 71-75) and some tables. The explanation of the formulas is given in an easily understandable way.
I don't want to give you the formulas here, because you need to understand how they are affected by the conductor geometry, which you can only get by reading the textbook. Michael Sidiropoulos
-
1
- #4
jbartos
Electrical
- Jan 15, 2000
- 6,440
Suggestion: In addition to the above postings, visit
etc. for more info
etc. for more info
SidiropoulosM
Electrical
jbartos you get a star for these two excellent references. Michael Sidiropoulos
There is a free program at the above site.
- Status
Similar threads
- Question
- Question
- Locked
- Question
